When distributing interactive PDF forms, you may want to restrict some of the capabilities that are normally available to PDF forms. For example, in a PDF form, you can normally add comments, insert and delete pages, sign the form, copy text, and save copies of the form.
You can select the Form Properties dialog box from the File menu and set the PDF security options in the PDF Security tab to restrict access to certain capabilities. You can disable the following options:
When you restrict access to any of the PDF form features, you should be aware that it may also affect the ability of screen readers to read the tagged PDF elements in your file. A screen reader is assistive software technology that allows users with vision impairment or disabilities to interact with computer software. To ensure that the form is available to these users, you need to enable text access for screen reader devices.
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About PDF security options